Abstract
This study presented nanosized WC-Co composite powders synthesized using a one-step reduction-carbonization process with a combination of CH4/H2 as a gas carbon source and soluble starch as an in situ carbon source. The results of carbon analysis and X-ray diffraction revealed that WC-Co nanocomposite powders with a pure WC and Co phase could be obtained at 1100 °C after 0.5 h. A higher gas flow ratio of CH4/H2 during the reduction-carbonization process led to a higher total carbon content of the sample. A field emission scanning electron microscope confirmed that the particles in the WC-6 wt% Co composite powders had the lowest average size of 43 nm with equiaxed shapes. A sintering neck was observed in the WC-3 wt% Co composite powders whereas faceted particles were found in the WC-12 wt% Co composite powders. Moreover, this method has advantages of simple processing, rapid synthesis and good applicability in potential industry application.
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W. H. Chen, P. K. Nayak, H. T. Lin, M. P. Chang, and J. L. Huang, Int. J. Refract. Met. H. 47, 44 (2014).
S. Norgren, J. García, A. Blomqvist, and L. Yin, Int. J. Refract. Met. H. 48, 31 (2015).
I. Konyashin and L. I. Klyachko, Int. J. Refract. Met. H. 49, 9 (2015).
M. Blandaa, A. Duszová, T. Csanádi, T. Csanádi, P. Hvizdoš, F. Lofaj, and J. Dusza, J. Eur. Ceram. Soc. 34, 3407 (2014).
N. Lin, Y. H. He, C. H. Wu, Q. K Zhang, J. Zou, and Z. W Zhao, Scripta Mater. 67, 826 (2012).
S. A. Hewitt and K. A. Kibble, Int. J. Refract. Met. H. 27, 937 (2009).
M. Jafari, M. H. Enayati, M. Salehi, S. M. Nahvi, and C. G. Park, Ceram. Int. 40, 11031 (2014).
G. E. Spriggs, Int. J. Refract. Met. H. 13, 241 (1995).
X. M. Ma and G. Ji, J. Alloys. Compd. 245, 30 (1996).
M. I. Dvornik, Int. J. Refract. Met. H. 28, 523 (2010).
G. Singla, K. Singh, and O. P. Pandey, Ceram. Int. 40, 5157 (2014).
F. L. Zhang, C. Y. Wang, and M. Zhu, Scripta Mater. 49, 1123 (2003).
M. H. Enayati, G. R. Aryanpour, and A. Ebnonnasir, Int. J. Refract. Met. H. 27, 159 (2009).
H. N. Meng, Z. Z. Zhang, F. X. Zhao, and T. Qiu, Int. J. Refract. Met. H. 41, 191 (2013).
W. Su, Y. X. Sun, J. Feng, J. Liu and J. M. Ruan, Int. J. Refract. Met. H. 48, 369 (2015).
M. W. R. Holgate, T. Schoberl, and S. R. Hall, J. Sol-Gel Sci. Technol. 49, 145 (2009).
Z. Zhang, S. Wahlberg, M. Wang, and M. Muhammed, NanoStruct. Mater. 12, 163 (1999).
T. G. Ryu, H. Y. Sohn, K. S. Hwang, and Z. Z. Fang, Ind. Eng. Chem. Res. 47, 9384 (2008).
H. H. Nersisyan, H. I. Won, C. W. Won, and J. H. Lee, Mater. Chem. Phys. 94, 153 (2005).
H. Lin, B. W. Tao, J. Xiong, Q. Li, and Y. Li, Ceram. Int. 39, 2877 (2013).
H. Preiss, B. Meyer, and C. Olschewski, J. Mater. Sci. 33, 713 (1998).
C. Davidson and G. B. Alexander, Metall. Trans. B 9, 533 (1978).
F. F. P. de Medeiros, A. G. P. da Silva, C. P. de Souza, and U. U. Gomes, Int. J. Refract. Met. H. 27, 43 (2009).
A. F. Guillermet, Metall. Trans. B 20, 935 (1989).
Z. G. Ban and L. L. Shaw, Acta Mater. 49, 2933 (2001).
P. Li, Z. W. Liu, L. Q. Cui, F. Q Zhai, Q. Wan, Z. L. Li, Z. Z. Fang, A. A. Volinsky, and X. H. Qu, Int. J. Hydrogen Energ. 39, 10911 (2014).
W. B. Liu, X. Y. Song J. X. Zhang, G. Z. Zhang, and X. M. Liu, Mater. Chem. Phys. 109, 235 (2008).
H. R. de Macedo, A. G. P. da Silvab, and D. M. A. de Melo, Mater. Lett. 57, 3924 (2003).
W. Su, Y. X. Sun, H. F. Wang, X. Q. Zhang, and J. M. Ruan, Int. J. Refract. Met. H. 45, 80 (2014).
M. F. Zawrah, Ceram. Int. 33, 155 (2007).
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Yang, Q., Yang, J., Yang, H. et al. Synthesis and characterization of WC-Co nanosized composite powders with in situ carbon and gas carbon sources. Met. Mater. Int. 22, 663–669 (2016). https://doi.org/10.1007/s12540-016-6033-6
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DOI: https://doi.org/10.1007/s12540-016-6033-6